<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	<script src="jquery-1.11.3.min.js" type="text/javascript" charset="utf-8"></script>
	<script type="text/javascript">
		
		$(function(){
			$("#btn").click(function(){
//				var re = $("#fuxuan").attr('checked');
				var re = $("#fuxuan").prop('checked');
				alert(re);
			})
		})
		
	</script>
	</head>
	<body>
	<input type="button" value="按钮" id="btn" />
	<br /><br />
	<input type="checkbox" id="fuxuan" />
	
	
		
	</body>
</html>
